c5bda0ca6f
Add a mmc_queue member to record the size of the queue, which currently supports 2 requests on-the-go at a time. Instead of allocating resources for 2 slots in the queue, allow for an arbitrary number. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#ifndef MMC_QUEUE_H
|
|
#define MMC_QUEUE_H
|
|
|
|
static inline bool mmc_req_is_special(struct request *req)
|
|
{
|
|
return req &&
|
|
(req_op(req) == REQ_OP_FLUSH ||
|
|
req_op(req) == REQ_OP_DISCARD ||
|
|
req_op(req) == REQ_OP_SECURE_ERASE);
|
|
}
|
|
|
|
struct request;
|
|
struct task_struct;
|
|
struct mmc_blk_data;
|
|
|
|
struct mmc_blk_request {
|
|
struct mmc_request mrq;
|
|
struct mmc_command sbc;
|
|
struct mmc_command cmd;
|
|
struct mmc_command stop;
|
|
struct mmc_data data;
|
|
int retune_retry_done;
|
|
};
|
|
|
|
struct mmc_queue_req {
|
|
struct request *req;
|
|
struct mmc_blk_request brq;
|
|
struct scatterlist *sg;
|
|
char *bounce_buf;
|
|
struct scatterlist *bounce_sg;
|
|
unsigned int bounce_sg_len;
|
|
struct mmc_async_req mmc_active;
|
|
};
|
|
|
|
struct mmc_queue {
|
|
struct mmc_card *card;
|
|
struct task_struct *thread;
|
|
struct semaphore thread_sem;
|
|
unsigned int flags;
|
|
#define MMC_QUEUE_SUSPENDED (1 << 0)
|
|
#define MMC_QUEUE_NEW_REQUEST (1 << 1)
|
|
bool asleep;
|
|
struct mmc_blk_data *blkdata;
|
|
struct request_queue *queue;
|
|
struct mmc_queue_req *mqrq;
|
|
struct mmc_queue_req *mqrq_cur;
|
|
struct mmc_queue_req *mqrq_prev;
|
|
int qdepth;
|
|
};
|
|
|
|
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
|
|
const char *);
|
|
extern void mmc_cleanup_queue(struct mmc_queue *);
|
|
extern void mmc_queue_suspend(struct mmc_queue *);
|
|
extern void mmc_queue_resume(struct mmc_queue *);
|
|
|
|
extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
|
|
struct mmc_queue_req *);
|
|
extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
|
|
extern void mmc_queue_bounce_post(struct mmc_queue_req *);
|
|
|
|
extern int mmc_access_rpmb(struct mmc_queue *);
|
|
|
|
#endif
|